Razor-sharpening machine.



A. WINTER.

RAZOR SHARPENING MACHINE.

APPLIOATION FILED NOV. 29, I912.

1,102,706.. I Patented July 7,1914.

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A. WINTER.

RAZOR SHARPENING MACHINE.

APPLICATION FILED NOV. 29, 1912.

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RAZOR SHARPENING MAGHINE. APPLICATION FILED NOV. 29, 1912.

Patented July 7, 1914.

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ALBERT WINTER, or BIRMINGHAM, ALABAMA, assroivon T0 PETER rnnnnnrz, or

BIRMINGHAM, ALABAMA.

nszos-srmnrnmns MACHlNE.

- Specification of Lettrs'fa'tiit.

Patented July a, 1914.

Application filed November 29, 1912. Serial-N0. 734,163.

To all whom it may concern: I

Be it known that I, ALBERT V17 mm, a citizen of the United States, residing at Birmingham, in the county of Jefferson and State of Alabama, have invented new and useful Improvements in Raz0r-Sharpe1iing Machines, of which the following is a specification.

This invention relates to improvements in sharpening machines and more particularly in machines for both stropping' and honing the edges of safety razor blades.

The invention has especial. reference to that type of sharpening device wherein the blade holder'is rocked or oscillated in such zit manner as topresent both faces of the blade to the action of the sharpening rele- Ihents, and, also,'is subjected to a reciprocatory movement axially of said elements, the improvements residing in certain structural details of the operating devices associated with the holder and its support for effecting the aforementioned movements.

The invention further compreh'ends an improved sharpening machine in which provision, is made for operating upon a comparatively large number of blades at the same time, the blades thus treated being I arranged in two sets, one of which is subjected to the actionof the honing elements, and the other to the action of the stropping elements, so that upon the completion of the latter operation the stroppcd blades may be replaced by the honed blades, and those blades. in turn, by a fresh set to be successively honed and stropped.

An embodiment of the invention is illustratctl in the accon'ipanying drawing, whereof Figure 1' is an end elevation -of the improved sharpening machine; Fig. 2 is a transverse verticalsection, taken on the line 2-2 of Fig. 3; Fig. 3 is a longitudinal vertical section. taken on the line of Fig. 4; Fig. 4 is a fragmental plan view, but with the upper honing, and shopping elcm'ents removed and the frame partly in section; and Fig. 5 is an enlarged juxtapovices,- G the mechanism for driving the same, and D the frame work or frame of the machine, these elements being of any construction that m y be considered ad visable.

' The devices A: and B in the present em:

bodiment of the invention consist, each, of a pair of horizontal rollers arranged longitudinally of the frame in superposed, aral-lel relation, and driven from a main s aft throu h the agency of belts or other suitable coin iectio'ns; the honing rollers being indicated by the numerals l and 2, the stropping rollers by the numerals 3 and 4, and the respective siipportin shafts 'by the i'ii'imerals 5, 6, 7 and 8. Tide ends of the aforesaid shafts are journaled in bearings provided in pairs of uprights 9 and 10, which are mounted at the opposite ends of a base 11, and the rollcrsare formed of or faced with any-material suitable for the purpose for which the rollers are to be utilized. 4 v

To drive the rollers, there is provided a horizontal shaft 12 j-ourn-aled in T-shaped brackets 13 and 14, that are disposed between the above-mentioned pairs of uprights, said shaft being furnished at one end with a pulley 15'connected by abelt 16 with any suitable source of power. Shaft 12 (hereinafter termed the main shaft), is further provided adjacent to the pulley 15 with a pair of pulleys 17 and 18 which are connected, respectively, by belts 19 and 20 with pulleys 21 and 22 on the lower roller shafts 6 and 8. The latter shafts are connected, in turn, to the corresponding uppcr roller sh-aftsfi and 7 by belt-s 23 and 24- whieh pass, respectively, around pulleys 25 and 26 on the shaft-s5 and 6, and pulleys 27 and 28 on the shafts 7 and 8. In conse quence of the arrangement just described, it will be apparent that rotation of the main shaft 12 will be transmitted to the lower roilcr shafts 6 and 8, and thence to the upper roller shafts 5 ers being! of the same dimensions and rotating at the same surface speed. The rollers of ea'ch pair are driven in opposite tions. a

The razor blades 29"0!" other articles to direcand 7, the several rollbe sharpen-ed are carried by holders 30 I whose preferred construction is depicted in F ig. 5, and'as originally stated, it is intended that a relatively large numberof holders be put into use at the same time, and that such holders be arranged in two sets, one of which carries the blades to be honed, and the other those to be stropped. Each set of holders is mounted upon a horizontal shaft 31 that is removably supported at its ends and connected with a slidlng carriage, as hereinafter described.

On reference to Fig. 5, it will be seen that the aforesaid holder comprises upper and lower complemental plate-like parts or members 32 and 33 whose forward portions are inclined toward each other and thus act as jaws which grip the blades between them. The rear portions of these members are provided with blocks 34 and 35 having alining horizontal perforations 36 formed through them to permit the passage of the holder shaft therothrough, and one of these blocks, preferably the block 34, is provided with a set-screw 37 to. securely attach the block to the holder'shaft, said shaft passing loosely through the perforation in block 35,

so that the holder has, in effect, a hinge connection with the holder shaft, as will be understood. The two members of the holder are normally forced away from each other by means of a spring 38 that encircles a bolt 39 whose upper end projects through an opening 40 in member 32 and carries a wing nut 41 or the like that serves to maintain said members in closed position.

To support the holder shafts, the terminals of each shaft are revolubly fitted in the socketed upper ends or heads 42 of a pair of brackets 43 that are rigidly connected at their lower ends to sleeves 44, the shaft terminals being retained in place in said sockets by bearing set-screws 45, as depicted in Fig. 3. Each pair of sleeves is connected, in turn, to a horizontalrod 46, by means of set-screws 47, and the ends of these rods are fastened to cross-pieces 48, the parts 46, 46, and 48 48, thus constituting a frame which is slidable upon supports 49 mounted upon the horizontal arms of the T-shaped brackets 13 and 14. To guide this frame in itsmovements, the ends of the supports 49 are provided with seats 50 in which the ad'- jacentsleeves 44 are slidably received.

It will be understood from the foregoing, that each set of blades in use coacts with the adjacent pair of rollers 1 and 2, or 3 and 4, according as the blades are to be honed or stropped, and to elfect the sharpening of the edges of said blades. the same are pressed and held momentarily first against one of the cooperative rollers and then against the other and, also, are shifted longitudinally or axially of said rollers. The requisite rocking movements of said holders are produced by oscillating the holder shafts through the agency of suitable mechanism hereinafter described, the arrangement being such that both shafts are actuated in unison, so that the honing and stropping operations take place simultaneously. This mechanism preferably consists, as shown, of a yoke 51 to which a vertical reciprocatory movement is imparted by means of an eccentric 52 fixed to the drive shaft 12, the eccentric strap 53 being connected to a vertical rod 54 with which.

the aforesaid yoke is integrally connected. The two vertical arms of yoke 51 are con nected by a horizontal bar 55 which is journaled at its ends in openings therein, thus rendering it capable of being rocked or turned axially, and said bar is formed with a pair of 'alining slots 56 through which loosely project the inner ends of a )air of rods 57 provided at their outer en s with sleeves 58.

and in consequence of this arrangement the reciprocato'ry movements of the eccentric rod 54 and its yoke 51 will produce a rocking or oscillatory movement of the two rods 57, which movement will be transmit- These sleeves encircle and are fastened to the adjacent holder shafts 3L ted, in turn, to the holder shafts, with theresult that the edges of the blades carried by the holders will be presented alternately to the action of the cooperative rollers- The eccentric rod 54 is guided during its move ments by its passage through a vertical opening formed on the horizontal arm of an inverted L-shaped bracket 5'9, and "its upper end is extended parallel with the yoke arms, as indicated by the numeral 60, to provide an .additional'support for bar 55, which latter passes through an opening in said extension.

To effect the longitudinal reciprocatory movements of the holder shafts, the sliding frame constituted by the parts 46, 46 and 48, 48 is connected with a second eccentric device which is also operated from shaft 12 and which embodies an eccentric 61fast on a horizontal countershaft 62 and a rod 63 fastened at one end to the adjacent cross piece 48 and at the other end to the eccentric strap 6.4.. Shaft 62 is journaled at its ends in bearings provided in horizontal arms 65 secured to the uprights 9 and is driven by a belt 66 which connects pulleys 67. and 68, the former pulleybeing affixed to the drive shaft 12 and the latter to the countershaft. Rotation of the drive shaft will, therefore, be transmitted to the eccentric 61 on the countershaft, and the connection between said eccentric and the sliding frame will serve to move the latter backward and forward axially of the machine, with the result that the edges of the blades in the holders are drawn along the rollers in the desired manner.

The operation of the entire machineis bemosses:

lievedicto-be apparentzfromthe foregoiu and further description thereof is accor' ingly considered,unnecessary. It may be by the holders on. one shaft: arebeing stropped, and those carried by the holders on, the second shaft are being honed aithirdset of holders may be placed upon the third shaft and filled with fresh blades, and this third shaft with its holders may be positioned in the machine to take the place of the first shaft, which latter is removed from the machine whenvthe stropping operation is coinpleted, the second shaft with its holdem having been previously transferred to the stropping side of the machine. The attachment of the shafts to the supporting brackets 43, and their subsequent removal therefrom is, of course, readily accom )lished by the socketed formation of the bracket heads 42 and the provision of' the bearing set-screws 45 in connection with said heads, it being understood that the shaft terminals are formed with the usual conical seats to receive the pointed ends of the screws.

I claim I 1. In a sharpening machine, the combination,with spaced pairs of honin and stroping rollers, and mechanism r rotating lioth pairs of rollers in unison and the rollers of each pair in opposite directions; of an oscillatory shaft'associated with each pair of rollers; a blade holder carried by each shaft; a vertically reciprocatory frame dis osed between said shafts and connected wit the same; and means for operating said frame, to oscillate both shafts and their holders in unison and bring the edge of each blade into contact with the adjacent pair of rollers alternately.

2. In a sharpening machine, the combination, with a pair of spaced sharpening rollers, and means for driving the same in unison of an endwise movable shaft associated with each roller; a'blade holder carried by'ea-ch shaft; a horizontally reciprocatory frame disposed between said shafts and connected with the same; and means for operating said frame, to move said shafts forward and backward in unison and draw the edge of each blade along the surface of the adjacent roller.

3. In a sharpenin machine, tion,'with spaced pans of honing and stroping rollers and mechanism for rotating; oth pairs of rollers in unison and the rollersof each pair in opposite directions; of an oscillatory and endwise movable shaft associated with each pair of rollers; a blade holder carried by each shaft; separate verticallyand horizontally reciprocatory frames disposed between said shafts and the combina connected :witlu-the same means for operat ingtheiverticallyireciprocatory fif'ame to oscillateiboth shaftsand their holders in unison'; and additional; means for'operatingitho horiaontalr reciprocatory frameto move both shafts,'with their holders, forward and backwardc'endwise in unison 1 .41. In a sharpening machine the combination, with spaced pairs of honing and strop- ,ping rollers, and mechanism for rotating both airs of rollers in unisonand the rollers of each pair'in opposite directionsyof an oscillatory shaft associated with each pair of rollers; a blade holder carried by each shaft, a vertically recipi'ocatory frame disposed between said shafts and provided with a rotatably mounted bar having a pair of openings formed therein; a rod. connected at one end to each shaft and having its other end loosely engaged in one of the openings in said bar; and means for operat, ing said frame, to oscillate both shafts and their holders in unison and bring the edge of each blade into contact with the adjacent pair of rollers alternately,

5. In a sharpening machine, the combinetlli tion with s aced )allffl of honino and stro pingrollers, and mechanism for rotating both airsof rollers in unison and. the rollers 0 each pair in opposite directions; of an oscillatory and endwise movable shaft associated with each pair of rollers; a. blade holder carried by each shaft; a verticaiiy re ciprocatory frame disposed. between said shafts and provided with a rotatablymonnt ed bar having a pair of alining longitudinal slots formed therein; a rod con-nested at one end to each shaft and having its other end extending loosely into one of said slots; means for operating said frame, to oscillate both shafts and their holders in unison; mechanism connected with said shafts for shifting the same forward and backward endwise in unison. during their oscillatory movements.

6. In a sharpenin machine, the combination, with spaced pairs of honing and shop pin rollers, and mechanism for rotating both pairs of rollers in unison and the roll ers of each pair in opposite directions; of a horizontally disposed sliding frame em-' bodying a pair of spaced parallel rods di posed between said pairs of rollers and cross pieces connecting the adjacent ends of said rods; a shaft associated with each pair of i rollers and arranged parallel with theadjacent frame rod; a air of sleeves afiixed to each frame rod adjacent the ends thereof and provided each with a sleeve wherein the adjacent, end of said frame rod is remov- I;

ably received; a blade holder carried by 7 each shaft; mechanism connected. said shafts for oscillating the their holders in unison to bring the edge of each blade into contact with the adjacent pair rollers alternately; and means connected my hand in presence of two subscribing with one of said cross pieces for lmpartlng witnesses.

an endwise reoiprocatorw movement to said frame, to move said sihafts forward and ALBERT T backward endwise in unison during their Titnesses:

I oscillatory-movements. ROBERT J. :PROWELL,

In testimony whereof I hve hereunto set HARRY H. SMITH. 

